quiz_form.inc

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<?php
Fakoli::using("questionnaire");
Fakoli::usingFile("/cms/components/questionnaire/questionnaire_form.inc");
 
 
class QuizForm extends QuestionnaireForm
{
     var $isCompleted = false;
     var $correctCount = 0;
     var $questionCount;
     
     function QuizForm($mgr)
     {
          parent::QuestionnaireForm($mgr);
          $this->id = "Quiz_form";
          $this->checkCompleted();
          $this->questionCount = count($this->questions);
          $this->gradeQuiz();
     }
     
     function writeHTML()
     {
          if(count($this->questions) == 0)
          {
               echo "There are no questions.<br/>";
               return;
          }
 
          if ($this->msg)
          {
               echo "<tr>\n <td colspan='2'><span class='error'>{$this->msg}</span</td></tr>\n";
               $this->msg = "";
               echo "</span>\n";
          }
     
          echo "<dl>\n";
          
          foreach($this->questions as $question)
          {
               $this->writeOneQuestion($question);
          }
 
          echo "</dl>\n";
     }
 
     function writeOneQuestion($question)
     {
          $qPk = $question->getID();
          $num = ($question->question->question_number) ? $question->question->question_number : $this->mgr->getQuestionNumber();
 
          $class = $this->getQuestionClass($question);
          
          echo " <dt id='dt_question_{$qPk}' class='{$class}'><label for='question_{$qPk}'>";
          
          if (!$question->skipNumbering)
          {
               echo "<b>{$num}.</b> ";
          }
          
          echo "{$question->question->question}</label></dt>\n";
 
          echo " <dd>";
 
          $question->writeHTML();
     
          echo " <br/></dd>";
     }
     
     function checkCompleted()
     {
          foreach($this->questions as $question)
          {    
               if(!$question->answer->value) 
               {
                    $this->isCompleted = false;
                    return;
               }         
          }
          $this->isCompleted = true;
     }
     
     function passed()
     {
          if($this->correctCount == $this->questionCount)
          {
               return true;
          }
          else
          {
               return false;
          }
     }
     
     function gradeQuiz()
     {
          foreach($this->questions as $question)
          {    
               if($question->answer->value && $question->answer->value == $question->question->answer)
               {
                    $this->correctCount ++;
               }
          }
     }
     
     function formatMissed()
     {
          $count = $this->questionCount - $this->correctCount;
          
          return ($count > 1) ? "$count questions" : "$count question";
     }
     
     function isCompleted()
     {
          return ($this->isCompleted) ? true : false;
     }
     
     function getQuestionClass($question)
     {
          if(!$question->question->hasField("answer") || !$this->isCompleted() || !$question->answer->value)
          {
               return "";
          }    
          
          return ($question->answer->value == $question->question->answer) ? "correct_answer" : "incorrect_answer";
     }    
     
}?>